.book {
    padding: 15px 0;
    display: flex;
}

.yy h3 {
    margin: 20px;
    font-weight: 400;
}

.yy dl {
    margin-top: 20px;
    width: 251px;
    text-align: center;
    border: 1px solid #30180cf6;
}

.yy dl dt {
    background-color: #30180cf6;
    height: 50px;
    line-height: 50px;
    color: #fff;
}

.yy dl dd {
    height: 30px;
    line-height: 30px;
}

.box2 {
    margin-top: 50px;
    margin-left: 20px;
}

.box2 h3 {
    font-size: 25px;
    float: left;
    height: 30px;
    width: 400px;
    color: black;
    line-height: 30px;
    text-align: left;
    border-radius: 20px;
}

.bt {
    height: 30px;
    line-height: 30px;
}

.box2 img {
    width: 180px;
    height: 190px;
}

.box2 ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.box2 ul li {
    padding: 15px 10px;
    width: 23.5%;
    text-align: center;
    margin-top: 30px;
    border-radius: 5px;
    box-shadow: 2px 2px 3px 1px #ccc,-2px -2px 3px 1px #ccc;
}

.box2 ul li h4 {
    text-align: left;
    font-size: 13px;
    margin: 10px 0;
}

.box2 ul li>p {
    font-size: 14px;
    color: gray;
}

.box2 ul li:nth-child(4n) {
    margin-right: 0;
}
.box2 ul li .price{
    display: flex;
    justify-content: space-between;
    margin-top: 15px;
}
.box2 ul li .price a{
    font-size: 12px;
    background-color: #372015;
    color: #fff;
    padding: 3px 5px;
    border-radius: 5px;
}
.box {
    height: 400px;
}

.box h2 {
    text-align: left;
    margin-bottom: 20px;
    height: 50px;
    line-height: 50px;
    background-color: #faf1b3f6;
    padding-left: 20px;
    font-size: 20px;
    text-align: center;
    letter-spacing: 20px;
}

.box p {
    text-indent: 2em;
    margin-bottom: 10px;
    line-height: 30px;
}